Hossam Aly's Avatar

Hossam Aly

@astrohoss.bsky.social

Astrophysics postdoc, currently at TU Delft๐Ÿ‡ณ๐Ÿ‡ฑ. Planet Formation, Accretion Discs (especially misaligned and warped ones), Dust Evolution, Computational Astrophysics. Formerly Leicester๐Ÿ‡ฌ๐Ÿ‡ง, Milan๐Ÿ‡ฎ๐Ÿ‡น, Lyon๐Ÿ‡ซ๐Ÿ‡ท, and Heidelberg๐Ÿ‡ฉ๐Ÿ‡ช. Originally from ๐Ÿ‡ช๐Ÿ‡ฌ

1,217 Followers  |  501 Following  |  258 Posts  |  Joined: 28.07.2023  |  2.3473

Latest posts by astrohoss.bsky.social on Bluesky

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Part of a report by Emma Murphy.

It's genocide.

05.08.2025 05:55 โ€” ๐Ÿ‘ 277    ๐Ÿ” 168    ๐Ÿ’ฌ 9    ๐Ÿ“Œ 13

Today is Hamilton's day (the maths one, who reformulated physics, not the politician)

Cheers to Hamilton!

04.08.2025 17:23 โ€” ๐Ÿ‘ 2    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Preview
Minister dismisses claims that recognising Palestinian state risks breaching international law โ€“ UK politics live Gareth Thomas rejects arguments from 40 peers that move may be illegal under the Montevideo Convention, which sets out terms for statehood

You know what actually breaches international law? Enabling a genocide by supplying weapons, jet parts, intelligence, and diplomatic immunity.

www.theguardian.com/politics/liv...

31.07.2025 09:39 โ€” ๐Ÿ‘ 3    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Preview
Recognise the Palestinian voice and future! As we hold our breaths in horror at what is happening in the Middle East, we know one thing to be true: until everyone is safe in the region, no one can be safe. Recognising Palestine and the Palestin...

As we hold our breaths in horror at what is happening in the Middle East, we know one thing to be true: until everyone is safe in the region, no one can be safe. Recognising Palestine will set the tone for peace. Join me and speak up for peace? action.wemove.eu/sign/2024-04...

31.07.2025 09:02 โ€” ๐Ÿ‘ 1    ๐Ÿ” 1    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
Preview
UK to recognise state of Palestine in September unless Israel holds to ceasefire Cabinet agrees to support Middle East roadmap at emergency meeting called amid humanitarian crisis in Gaza

I really do not understand. In what universe is the statehood of an occupied nation contingent upon the actions of the occupier?!

www.theguardian.com/politics/202...

30.07.2025 22:15 โ€” ๐Ÿ‘ 2    ๐Ÿ” 1    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Starmer is like if we're forced to do something right we'll make sure to do it in all the wrong ways

30.07.2025 22:16 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Preview
UK to recognise state of Palestine in September unless Israel holds to ceasefire Cabinet agrees to support Middle East roadmap at emergency meeting called amid humanitarian crisis in Gaza

I really do not understand. In what universe is the statehood of an occupied nation contingent upon the actions of the occupier?!

www.theguardian.com/politics/202...

30.07.2025 22:15 โ€” ๐Ÿ‘ 2    ๐Ÿ” 1    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

OK this is definitely one for future historians

30.07.2025 14:59 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Nope. Two different arses in one set of underpants. It makes no sense and that's why it's beautiful

30.07.2025 12:15 โ€” ๐Ÿ‘ 9    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

What's also not unique is that the answer to the question "How did the world let this happen?" is still that the world is run by racists, individuals and institutions, who believe in a hierarchy of human life

26.07.2025 19:48 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Israel Minister Aimchai Eliyahu "All Gaza will be Jewish...the government is pushing for Gaza being wiped out. Thank god, we are wiping out this evil."
Unless Netanyahu sacks him or reprimands him (he hasn't and won't), we should see it as an official statement of Israeli policy and objectives.

24.07.2025 17:44 โ€” ๐Ÿ‘ 130    ๐Ÿ” 60    ๐Ÿ’ฌ 6    ๐Ÿ“Œ 2

Good on France! As the Knesset voted to annex the West Bank, and Israel continues to wipe out Gaza, this is mostly a symbolic move. An important one, nonetheless

24.07.2025 21:19 โ€” ๐Ÿ‘ 4    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

"One day, everyone will have always been against this"

We will remember those who have enthusiastically enabled and sponsored their "ally" to do this. And believe me, we have long memories.

One day, the Hague will welcome a bunch of high profile residents

22.07.2025 11:10 โ€” ๐Ÿ‘ 4    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Al-Jazeera graphic

[text]
ISRAEL'S WAR ON GAZA
Space for Gaza's displaced shrinking
90 percent of Gaza's population has been forcibily displaced, many multiple times, while 86 percent of the territory is now under Israeli forced evacuation orders or designated as military zones.

[image]
Map of Gaza demonstrating that areas with both an Israeli militarized zone and under forced evacuation take up the vast majority of the strip

[text on the image]
86% of the Gaza strip is a no-go area or Israel-ordered displacement zone

Al-Jazeera graphic [text] ISRAEL'S WAR ON GAZA Space for Gaza's displaced shrinking 90 percent of Gaza's population has been forcibily displaced, many multiple times, while 86 percent of the territory is now under Israeli forced evacuation orders or designated as military zones. [image] Map of Gaza demonstrating that areas with both an Israeli militarized zone and under forced evacuation take up the vast majority of the strip [text on the image] 86% of the Gaza strip is a no-go area or Israel-ordered displacement zone

The Gaza Strip is 25 mi long & 3.7-7.5 mi wide; ~140 sq mi altogether.

That's about the size of Las Vegas.

The white parts in this map are the only parts of those 140 sq mi that are not an Israeli militarized zone, under forced evacuation, or both.

The one in the middle is being attacked today.

21.07.2025 15:36 โ€” ๐Ÿ‘ 81    ๐Ÿ” 57    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 5
Preview
It's clear โ€“ Israel now has a plan for the ethnic cleansing of Palestinians from Gaza ***

It's Clear โ€“ Israel Now Has a Plan for the Ethnic Cleansing of Palestinians From Gaza

Gideon Levy

www.haaretz.com/opinion/2025...

20.07.2025 08:07 โ€” ๐Ÿ‘ 25    ๐Ÿ” 9    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 2

Note the explicit omission of progress flags

19.07.2025 09:37 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Not the only mistake in the article unfortunately. It says Hypatia lived in 3rd/4th century BC, which would be astonishing since she was murdered by a Christian mob (she lived in 4th/5th century AD in Alexandria)

18.07.2025 23:40 โ€” ๐Ÿ‘ 6    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Yes you're right I think it's more likely to be a son in law. But her brothers would also count as 'sihr' so there's a chance

18.07.2025 21:48 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Right yes I had the same thought, but then I realised back then it wasn't uncommon for his wife to be half his age or less

18.07.2025 21:31 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Al mu'alif just means 'the author'. As in Sihr of the author

18.07.2025 21:24 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

As far as I know, it should imply actual marriage. Classical Arabic didn't change much, but there's a chance the word was used differently back then

18.07.2025 21:13 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Not an expert on Ibn Al Haytham by any means, but I think the Arabic word used here (Sihr/ุตู‡ุฑ) does not always mean son in law. It can basically mean any 'relative via marriage'. So could be a wife's father, brother, or even uncle

18.07.2025 20:57 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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This is the end result of anti-trans bigotry: more harassment of girls and women, more policing of gender roles, more gender McCarthyism.

17.07.2025 15:08 โ€” ๐Ÿ‘ 3848    ๐Ÿ” 1331    ๐Ÿ’ฌ 59    ๐Ÿ“Œ 147

The quick regression on trans rights is really quite disturbing! Like did we actually learn anything from the 20th century?!!!

17.07.2025 18:28 โ€” ๐Ÿ‘ 3    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Alar Toomre?

17.07.2025 14:23 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Thanks Jeff! โค๏ธ๐ŸŽ‰

16.07.2025 12:16 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Finally, there's lots of caveats about our simplified setup, most importantly that we only partly treat gravitational stratification, and not self consistently. But as a first step we show that the DSI may be relevant for planet formation, even in the polydisperse regime

14/14

16.07.2025 10:08 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

There also seems to be a gradient in sizes (with bigger dust forming filaments that are 'leading the way' as it were). This may have implications on dust growth, since dust particles mostly only see other particles with similar sizes in their immediate surroundings in those filaments

13/14

16.07.2025 10:08 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Last cool thing, when looking at the clumps of high dust density in the polydisperse cases (Fig.9) it looks like dust with different sizes form different filaments that are adjacent to each other, so that within each filament the dust is mostly with the same size

12/14

16.07.2025 10:08 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

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